Head-to-Head Comparison

Updated September 5, 2026

Casio MRW-230H vs Frederique Constant Classic Quartz Moonphase

Casio's timepiece meets Frederique Constant's dress watch

Quick Verdict

The Casio MRW-230H (Under $50) offers Casio Quartz (Battery) precision in the tier below the Frederique Constant Classic Quartz Moonphase ($1,000–$1,500). The MRW-230H measures 44.6mm (47.9 x 44.6 x 12.3mm) and is rated 100m (10 ATM). The Classic Quartz Moonphase counters with Swiss Made craftsmanship and 50m (5 ATM) water resistance. Both are exceptional watches for their respective tiers.

CasioMRW-230HUnder $50 Check price Frederique ConstantClassic Quartz Moonphase$1,000–$1,500 Check price

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Casio

MRW-230H

Under $50

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Frederique Constant

Classic Quartz Moonphase

$1,000–$1,500

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Specifications Compared

Feature	Casio MRW-230H	Frederique Constant Classic Quartz Moonphase
Price	Under $50	$1,000–$1,500
Case Size	44.6mm (47.9 x 44.6 x 12.3mm)	40mm
Movement	Quartz	Quartz FC-206
Caliber Type	Casio Quartz (Battery)	Swiss Quartz
Power Reserve	Approx. 3-year battery (SR626SW)	Battery
Water Resistance	100m (10 ATM)	50m (5 ATM)
Crystal	Resin Glass	Anti-Reflective Sapphire Crystal
Case Material	Resin case, aluminum bezel ring	Stainless Steel
Origin	Casio (Japan)	Swiss Made

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Casio's design language vs Frederique Constant's approach

The Casio MRW-230H features a Resin case, aluminum bezel ring case at 44.6mm (47.9 x 44.6 x 12.3mm) with Resin Glass protection. The Frederique Constant Classic Quartz Moonphase offers Stainless Steel construction at 40mm with Anti-Reflective Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Draw

Quartz vs Quartz FC-206

The MRW-230H runs the Quartz (Casio Quartz (Battery), Approx. 3-year battery (SR626SW) power reserve) at standard frequency. The Classic Quartz Moonphase uses the Quartz FC-206 (Swiss Quartz, Battery reserve) at standard. Power reserves are closely matched.

📏

Wearability & Fit

Edge: Frederique Constant

44.6mm (47.9 x 44.6 x 12.3mm) vs 40mm — different wrist presence

At 44.6mm (47.9 x 44.6 x 12.3mm), the MRW-230H has a bolder wrist presence compared to the Classic Quartz Moonphase at 40mm. Water resistance differs: 100m (10 ATM) vs 50m (5 ATM).

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Value & Cost of Ownership

Edge: Casio

Casio sits in the lower tier

The Casio MRW-230H sits at Under $50 and the Frederique Constant Classic Quartz Moonphase at $1,000–$1,500. On the specs that outlast any price: the MRW-230H uses Resin Glass with Approx. 3-year battery (SR626SW), against Anti-Reflective Sapphire Crystal and Battery on the Classic Quartz Moonphase. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Casio

100m (10 ATM) vs 50m (5 ATM)

The MRW-230H is rated to 100m (10 ATM) while the Classic Quartz Moonphase handles 50m (5 ATM). The MRW-230H is better suited for water activities.

Our Verdict

Casio

MRW-230H

Choose the Casio MRW-230H if you prioritize Casio Quartz (Battery) engineering, Casio (Japan) craftsmanship, and 100m (10 ATM) water resistance. At Under $50, it delivers Quartz with Approx. 3-year battery (SR626SW) power reserve.

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Frederique Constant

Classic Quartz Moonphase

Choose the Frederique Constant Classic Quartz Moonphase if you value Swiss Quartz technology, Swiss Made heritage, and 40mm proportions. At $1,000–$1,500, the Quartz FC-206 with Battery power reserve makes it a compelling choice.

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The Bottom Line

The Casio MRW-230H and Frederique Constant Classic Quartz Moonphase represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Frederique Constant delivers Swiss Made engineering.

Frequently Asked Questions

For water, the Casio MRW-230H is rated 100 m against 50 m, which is the difference between swimming and diving on one side and splashes on the other. On price, the Casio MRW-230H sits a band lower (Under $50 against $1,000–$1,500), so it is the cheaper way into the category. Neither is better at everything; the spec table above shows movement, case size, water resistance and crystal side by side so you can weigh what matters to you. We do not test units, so this is the makers' data, not a bench result.

The Casio MRW-230H offers better upfront value, sitting a tier lower at Under $50. However, the Frederique Constant Classic Quartz Moonphase may justify its premium with superior finishing, heritage, or resale value.

Both are suitable for daily wear. The MRW-230H at 44.6mm (47.9 x 44.6 x 12.3mm) with 100m (10 ATM) water resistance handles everyday situations. The Classic Quartz Moonphase at 40mm with 50m (5 ATM) is similarly capable. The MRW-230H uses Resin Glass while the Classic Quartz Moonphase uses Anti-Reflective Sapphire Crystal.

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How This Page Was Made

Our comparisons are generated from a hand-maintained specification database and reviewed under our editorial standards. We use AI tools to assemble pages from that data. We don’t invent specs: every number traces back to the database, and when we correct an entry, the fix is applied site-wide. As an Amazon Associate, The Horologist earns from qualifying purchases.